13,479 results match your criteria: "University of Muenster; mhippler@uni-muenster.de.[Affiliation]"

Silicon is a promising negative electrode material for solid-state batteries (SSBs) due to its high specific capacity and ability to prevent lithium dendrite formation. However, SSBs with silicon electrodes currently suffer from poor cycling stability, despite chemical engineering efforts. This study investigates the cycling failure mechanism of composite Si/LiPSCl electrodes by decoupling the effects of interface chemical degradation and mechanical cracking.

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The treatment of relapsed/refractory acute myeloid leukemia (AML) is associated with a dismal prognosis. The allogeneic hematopoietic cell transplantation (allo-HCT) is frequently performed as salvage therapy. Reduced intensity conditioning protocols have been developed with the aim of reducing the leukemia burden without increasing their toxicity.

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The NADPH/NADP redox couple is central to metabolism and redox signalling. NADP redox state is differentially regulated by distinct enzymatic machineries at the subcellular compartment level. Nonetheless, a detailed understanding of subcellular NADP redox dynamics is limited by the availability of appropriate tools.

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Cytosolic S100A8/A9 promotes Ca supply at LFA-1 adhesion clusters during neutrophil recruitment.

Elife

December 2024

Walter Brendel Center of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-University, Planegg-Martinsried, München, Germany.

S100A8/A9 is an endogenous alarmin secreted by myeloid cells during many acute and chronic inflammatory disorders. Despite increasing evidence of the proinflammatory effects of extracellular S100A8/A9, little is known about its intracellular function. Here, we show that cytosolic S100A8/A9 is indispensable for neutrophil post-arrest modifications during outside-in signaling under flow conditions in vitro and neutrophil recruitment in vivo, independent of its extracellular functions.

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Neurological complications in patients undergoing veno-venous extracorporeal membrane oxygenation (V-V ECMO) are challenging, with new intracranial pathologies posing a grave risk. We aimed to evaluate the utility of neuron-specific enolase (NSE) and S100B biomarkers for predicting outcomes in new-onset intracranial pathology during V-V ECMO. A retrospective analysis spanning 2013-2021 at a German university hospital was conducted.

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Deep proteomics and network pharmacology reveal sex- and age-shared neuropathic pain signatures in mouse dorsal root ganglia.

Pharmacol Res

January 2025

Division of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria. Electronic address:

Our understanding of how sex and age influence chronic pain at the molecular level is still limited with wide-reaching consequences for adolescent patients. Here, we leveraged deep proteome profiling of mouse dorsal root ganglia (DRG) from adolescent (4-week-old) and adult (12-week-old) male and female mice to investigate the establishment of neuropathic pain in the spared nerve injury (SNI)-model in parallel. We quantified over 12,000 proteins, including notable ion channels involved in pain, highlighting the sensitivity of our approach.

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Background: The choroid plexus is an important structure within the ventricular system. Schizophrenia has been associated with morphological changes to the choroid plexus but the presence and extent of alterations at different illness stages is unclear.

Methods: We examined choroid plexus volumes in participants at clinical high-risk for psychosis (N = 110), participants with first-episode psychosis (N = 37), participants with schizophrenia (N = 28), clinical (N = 38) and non-clinical controls (N = 75).

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Stimuli-responsive nanocontainers have emerged as promising vehicles to deliver molecular payloads into the cytosol of cells in a spatially, temporally and dosage-controlled manner. These nanocontainers respond to a specific type of stimulus such as a change in redox status, enzymatic activity, pH, heat, light, and others. In this work, we introduce photoresponsive nanocontainers based on the self-assembly of vesicles with surface-confined cyclodextrin-adamantane host-guest chemistry.

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A pair of two atrial myxomas mimic thrombus in left atrial appendage and cause ischemic stroke in a young adult: a case report.

Eur Heart J Case Rep

December 2024

Department of Cardiology, Rhythmology, Angiology and Intensive Care Medicine, Heart Center Osnabrueck, Hospital Osnabrueck, Westphalian Wilhelms University of Muenster, Osnabrueck, Germany.

Background: Stroke is one of the leading causes of mortality and disability and can be rarely caused by cardiac myxoma.

Case Summary: Here, we report about a 56-year-old man who suffered from a stroke presented with acute dysarthria and left hemiparesis. Magnetic resonance imaging (MRI) of the brain revealed an acute stroke.

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Objectives: Cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) haploinsufficiency is a rare genetic condition characterized by development of immune cytopenia, hypogammaglobulinemia, and/or lymphoproliferative disorder, as well as multiple autoimmunity. Treatment with abatacept was shown to alleviate autoimmune conditions, yet its long-lasting impact on bone marrow function remains undetermined.

Methods: We here present the case of a now 39-year-old woman with CTLA-4 haploinsufficiency with predominant CNS affection, yet multiorgan autoimmunity and lymphopenia.

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The blue whale is an endangered and globally distributed species of baleen whale with multiple described subspecies, including the morphologically and genetically distinct pygmy blue whale. North Atlantic and North Pacific populations, however, are currently regarded as a single subspecies despite being separated by continental land masses and acoustic call differences. To determine the degree of isolation among the Northern Hemisphere populations, 14 North Pacific and 6 Western Australian blue whale nuclear and mitochondrial genomes were sequenced and analysed together with 11 publicly available North Atlantic blue whale genomes.

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Background: Rhabdomyosarcoma and other soft tissue sarcomas (STS) with high-risk features are still associated with an unsatisfactory outcome. We evaluated the efficacy of oral maintenance therapy added at the end of standard therapy in patients with high-risk rhabdomyosarcoma and STS.

Methods: CWS-2007-HR was a multicentre, open-label, randomised controlled, phase 3 trial done at 87 centers in 5 countries.

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Polyurethane (PUR) soft foams release malodorous and potentially toxic compounds when exposed to oxidative conditions. Current chamber test methods cannot distinguish between pre-existing volatiles and those formed during oxidation, nor can they assess the formation rates of oxidation products. We subjected PUR soft foam to oxidative treatment in a continuous air flow at 120 °C.

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Development and validation of a quantification method for direct oral anticoagulants from capillary blood using volumetric absorptive microsampling and online SPE-LC-MS.

J Chromatogr B Analyt Technol Biomed Life Sci

January 2025

Department of Pharmaceutical and Medical Chemistry, Clinical Pharmacy, University of Muenster, Muenster, Germany. Electronic address:

The number of prescriptions for new direct oral anticoagulants (DOACs) apixaban, edoxaban, rivaroxaban and dabigatran has increased exponentially in recent years, increasingly replacing the old gold standard, vitamin-K-antagonists. Due to their wide therapeutic range, therapeutic drug monitoring (TDM) is not required, although it has been proven that this could significantly reduce side effects. In order to develop a cost-efficient and simple method for the simultaneous detection of the DOACs and phenprocoumon, a new technology for sample preparation from capillary blood in the ambulant sector named VAMS® was integrated and an LC-MS detector with on-line solid phase extraction (SPE) applying a Turboflow HTLC Cyclone 1.

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The distinctive mechanical and structural signatures of residual force enhancement in myofibers.

Proc Natl Acad Sci U S A

December 2024

Institute of Physiology II, University Hospital Muenster, University of Muenster, Muenster 48149, Germany.

In muscle, titin proteins connect myofilaments together and are thought to be critical for contraction, especially during residual force enhancement (RFE) when steady-state force is elevated after an active stretch. We investigated titin's function during contraction using small-angle X-ray diffraction to track structural changes before and after 50% titin cleavage and in the RFE-deficient, titin mutant. We report that the RFE state is structurally distinct from pure isometric contractions, with increased thick filament strain and decreased lattice spacing, most likely caused by elevated titin-based forces.

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Stem subsidence in total hip arthroplasty: retrospective investigation of a short stem using a simple measurement approach.

Arch Orthop Trauma Surg

December 2024

Department of General Orthopaedics and Tumour Orthopedics, Muenster University Hospital, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany.

Background: Uncemented total hip arthroplasty (THA) is a successful treatment for advanced hip joint diseases. More recently, short stems became increasingly popular, but stem subsidence remains a concern. This study investigates early short stem subsidence in a large patient cohort using a simple measurement approach for everyday practice.

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The first-in-its-class cardiac drug mavacamten reduces the proportion of so-called ON-state myosin heads in relaxed sarcomeres, altering contraction performance. However, mavacamten is not completely specific to cardiac myosin and can also affect skeletal muscle myosin, an important consideration since mavacamten is administered orally and so will also be present in skeletal tissue. Here, we studied the effect of mavacamten on skeletal muscle structure using small-angle X-ray diffraction.

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Purpose: Sperm morphology and motility are major contributors to male-factor infertility, with many genes predicted to be involved. This study aimed to elucidate differentially expressed transcripts in human testis tissues of normal and abnormal spermatogenesis that could reveal new genes that may regulate sperm morphology and function.

Methods: Human testis biopsies were collected from men with well-characterized phenotypes of normal spermatogenesis, spermatid arrest, and Sertoli cell-only phenotype, and transcriptional differences were quantified by RNA-sequencing (RNA-Seq).

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The role of radiotherapy in the treatment of lymphoma is rapidly evolving. The development of modern systemic therapies and the adoption of FDG-PET-scanning as metabolic prognosticators are leading to a process of refinement of the treatment regimens. In this scenario, radiotherapy utilization is decreasing in several settings, including lower risk patients, to prevent the risk of long-term complications.

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A multi-scale study of thalamic state-dependent responsiveness.

PLoS Comput Biol

December 2024

Department for Integrative and Computational Neuroscience, Paris-Saclay Institute of Neuroscience, Saclay, France.

The thalamus is the brain's central relay station, orchestrating sensory processing and cognitive functions. However, how thalamic function depends on internal and external states, is not well understood. A comprehensive understanding would necessitate the integration of single cell dynamics with their collective behavior at population level.

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Robotic-Assisted Microsurgery in Gender-Affirming Phalloplasty.

Ann Plast Surg

January 2025

Centre for Reproductive Medicine and Andrology, Department of Clinical and Surgical Andrology, University Hospital Muenster, Muenster, Germany.

Genital gender-affirming masculinization surgeries require handling of small vessels and nerves handling in deep planes. Since the introduction of the Symani Surgical System for robotic-assisted microsurgery in clinical practice, its value in handling small and deep vessels via additional distal motion axes, motion scaling, and tremor elimination has been demonstrated. We combined the Symani with the robotic exoscope RoboticScope to achieve maximum flexibility and ergonomics for the microsurgeon.

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Rationale: Pancreatic stellate cells (PSCs) produce a collagen-rich connective tissue in chronic pancreatitis and pancreatic ductal adenocarcinoma (PDAC). Ca-permeable ion channels such as ORAI1 are known to affect PSC proliferation and myofibroblastic phenotype. However, it is unknown whether these channels play a role in collagen secretion.

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Article Synopsis
  • Glofitamab, a bispecific antibody targeting CD20 and CD3, shows promise for treating relapsed/refractory diffuse large B-cell lymphoma (r/r DLBCL) in heavily pretreated patients, with an overall response rate of 47%.
  • In a study involving 70 patients in Germany, Austria, and Switzerland, the median number of prior treatments was four, with notable safety concerns including cytokine release syndrome in 40% of cases.
  • Important findings indicate that elevated LDH levels predict poorer outcomes, and recent treatment with bendamustine may reduce the efficacy of glofitamab, suggesting careful treatment sequencing is essential.
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Article Synopsis
  • Allogeneic stem cell transplantation (alloSCT) is an effective treatment to cure patients with relapsed/refractory (r/r) aggressive lymphomas, particularly focusing on peripheral T-cell lymphoma (PTCL) and diffuse large B-cell lymphoma (DLBCL).
  • The study found that patients with PTCL had significantly better outcomes compared to those with DLBCL in terms of 5-year progression-free survival (PFS) and overall survival (OS), especially after the first 100 days post-transplant.
  • Despite similar rates of non-relapse mortality, DLBCL patients faced higher rates of relapse mortality, and the presence of extensive chronic graft-versus-host disease (GvHD) negatively impacted outcomes for both
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The overlooked burden of persistent physical symptoms: a call for action in European healthcare.

Lancet Reg Health Eur

January 2025

Department of Psychosomatic Medicine and Psychotherapy, Centre for Internal Medicine, University Medical Centre Hamburg-Eppendorf, Martinistraße 52, Hamburg 20246, Germany.

Regardless of their cause, persistent physical symptoms are distressing somatic complaints that occur on most days for at least several months. They are common in patients with somatic diseases, functional somatic disorders, mental disorders, and undiagnosed medical conditions and are often associated with significant impairment and medical costs. Despite their prevalence and impact, persistent physical symptoms are often overlooked in medical care.

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